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Maintenance-free detection device and method thereof of air tightness of small cell cover

An air-tightness detection and maintenance-free technology, which can be used in liquid/vacuum measurement for liquid tightness, by detecting the appearance of fluid at the leak point, and by measuring the acceleration and deceleration rate of fluid, etc., which can solve the deviation of detection conclusions. , battery scrap, leakage and other problems, to achieve the effect of intuitive and clear sealing, safe inflation process, and avoid differences

Active Publication Date: 2010-04-21
WOLONG ELECTRIC GRP CO LTD +1
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Problems solved by technology

[0003] However, during the testing process, due to the large impact force during inflation and the small vent hole of the small cap, in the case of a deviation in the positioning of the plug, the vent hole of the small cap is likely to be damaged during inflation. If it cannot be discovered in time, it will be discovered when the battery has completed the second heat seal, which will cause the damaged vent hole to be repaired and cause the battery to be scrapped
On the other hand, it is difficult to effectively detect small air leakage by using this air tightness test method to detect the battery, and liquid leakage often occurs during subsequent use.
In addition, the existing air tightness testing methods vary according to the testing experience and proficiency of different testing personnel, which may also easily lead to deviations in the testing conclusions

Method used

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  • Maintenance-free detection device and method thereof of air tightness of small cell cover
  • Maintenance-free detection device and method thereof of air tightness of small cell cover
  • Maintenance-free detection device and method thereof of air tightness of small cell cover

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Embodiment Construction

[0015] The substantive features of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] like figure 1 and figure 2 Shown: maintenance-free battery small cover water bath air tightness testing device, including a fixed plate 6 and a water tank 1 below it, the lower part of the fixed plate 6 is provided with a device frame 5, and the device frame 5 consists of an upper table 51 and a lower table that are parallel to each other 52 constitute. The upper table 51 is connected to the fixed plate 6 through the guide column 7, and the guide column 7 is lifted and lowered by the cylinder 8, and a plurality of storage batteries 11 to be tested can be placed on the lower table 52. The upper table surface 51 and the lower table surface 52 are connected by vertical plates 7 located at both ends of the vertical plate 7. There are vertical slide grooves on both sides of the vertical plate 7. A support plate ...

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Abstract

The invention relates to a maintenance-free detection device and a method thereof for the air tightness of a small cell cover, aiming at the problem that the traditional detection device and method are difficult to effectively detect the air leakage of an accumulator cell. The detection device comprises a water tank, the water tank is provided with a liftable device rack which is horizontally provided with a support plate; symmetrical and translational L-shaped stop levers are arranged below both sides of the support plate; the outer ends of the stop levers are provided with core plugs; the support plate is also provided with an inflation device which inflates through a through hole of an electrohydraulic display; and the air inflation device comprises an inflation head. The invention changes the traditional detection method of exposing in the air into the detection device and method of immersing in water, has the advantages of uniform specifications and no deviation and is convenient to routinize the product detection.

Description

technical field [0001] The invention belongs to the technical field of air-tightness detection of lead-acid batteries, and in particular relates to an air-tightness detection device and method for a maintenance-free battery small cover. Background technique [0002] During the manufacturing process of the maintenance-free starting battery, the battery cover is a secondary heat-sealed structure. After the small cover is heat-sealed, it is necessary to conduct an air-tightness test. This is a very important process. Air leakage will cause the battery to break explode. The current detection method is: block the exhaust holes at both ends of the small battery cover exposed in the air with rubber plugs, one end of the plug has an air-filled hole, when the two ends of the small battery cover are blocked, Inflate the inflation hole again, and check whether it is sealed well through the instrument. [0003] However, during the testing process, due to the large impact force during ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/06G01M3/26
Inventor 朱卫民裘小平
Owner WOLONG ELECTRIC GRP CO LTD
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